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AI GlossaryㅇWords you meet while using AI

Watermelon

A new AI model reportedly set to be unveiled by Meta in October 2026, said to power its paid agent service, Hatch.

In plain words

Watermelon is the name of a new AI model that Meta is reportedly planning to unveil in October. Think of it like a car: Hatch, the paid assistant service, is the visible body of the car, while Watermelon is the engine that actually drives it. When a user asks it to order food from DoorDash or organize a schedule, Watermelon is reportedly the "brain" that understands and carries out the request.

Over the past few months, Meta has released a series of models under the Muse name. It's reportedly still undecided whether Watermelon will join this Muse family or stand on its own as a separately named model. The name itself sounds like it could belong to a fruit-themed series, but there's no confirmation that Meta actually follows such a naming convention.

How it shows up in the news

Articles use it in sentences like, "The new model set to power Hatch is reportedly named Watermelon, with an October launch targeted." A common misreading here is assuming Watermelon is automatically the successor to the Muse series — but the original reporting is careful to note that whether it will join the Muse lineup is still undecided.

See also

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